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Built from parts of one of Numbani's short-lived OR15 defense robots, Orisa is the city's newest protector, though she still has much to learn.

Originally put into service before the Omnic Crisis, the OR14 "Idina" line of security robots was built in Nigeria's massive manufacturing omnium. After the war, they were taken out of production, along with many of the other models used during the crisis. Twenty years later, Numbani revived and recommissioned the OR14 program to protect the city from external threats. These new OR15s were deployed for a short time before they were destroyed in an attack by Doomfist.

Following the attack, the program was scrapped, and the civic government sold off the remaining OR15 inventory. Some parts were purchased by eleven-year-old Efi Oladele, a brilliant girl whose early accomplishments in robotics and artificial intelligence had already earned her the Adawe Foundation's "genius grant."

With the approval of her understanding and open-minded parents, Efi spent the bulk of her grant money to acquire one of the decommissioned OR15 bots. She believed that Numbani needed a protector and that an upgraded OR15 could do just that. Efi repaired and reconfigured the robot and installed a personality core that she had designed herself.

She named Numbani's newest hero Orisa.

Orisa has shown that she can be of service to the city, but she is still working toward finding her optimal protocols. The omnic's inexperience can cause her to be an occasional liability. Fortunately, between Efi's willingness to make the necessary modifications and Orisa's adaptive artificial intelligence, both robot and creator have always been able to set things right.

As Orisa starts her career as a guardian, she has much to learn about the world and her functionality. But as long as she is guided by Efi's boundless optimism and her own growing sense of honor and duty, Orisa stands ready to protect Numbani and her creator at any cost.

All seasonal event items, which are marked with special event icons ( • • • • • ), are only available to be unlocked either through their respective Loot Boxes or by Credits within the event's duration.During the event, newly-introduced event items cost three times as much as non-event items of the same rarity, while returning seasonal items are unlocked at the regular price.

The OR15 program originally was established to enhance the defense of Numbani. However, after a monstrous attack on Numbani's airport by Doomfist, the Numbani council abolished the program and sold off the rest of the OR15 robots. Realizing the potential of the robots, the genius inventor Efi Oladele used her newly-earned grant to purchase an OR15 chassis and made a new guardian robot with an upgraded arsenal and a personality core. When rebooting, Efi decided to name the new robot Orisa. With Efi's guidance, Orisa began her job as a new protector of Numbani.

Orisa appears to be very passionate in providing protection and keeping people safe. She appears to have a defensive nature and sometimes even acts motherly towards her allies. Her attitude sometimes can be viewed as commanding, similar to a police officer. Otherwise, she is quite inexperienced and requires Efi to stay close and prevent her from overstepping the line.

Orisa should never be alone when fighting. Always have a reliable healer like Mercy who can back you up.

Fusion Driver

Orisa's Fusion Driver can shoot continuously for 12 seconds. To compensate, its reload is the slowest in the game, so reload sparingly and make the most out of her bullets. Burst firing is not recommended, as the spread always stays the same.

Using Quick Melee at the right time will let Orisa have a full magazine and do some damage while her gun is completing its reloading animation; however, the difference in the Fusion Driver's downtime is negligible.

The cooldown for the Protective Barrier starts right after the barrier is launched, so if left alone for a while, it can be set up again after 8 seconds.

In most cases, when an Orisa has teammates to back her up, Protective Barrier is an essential object to have on capture points. It is very difficult to overcome, and almost all the time ensures a quick victory.

Halt!

Orisa's Halt! projectile has a large radius. It can be used to pull people into oncoming AoE (Area of Effect) ultimates or off of cliffs.

Acting similarly to Symmetra's Energy Ball, her Halt! projectile moves forward and can be detonated at any time before it hits a surface.

Halt can be used to score environmental kills but needs to be timed precisely. For example, at the 1st point of Volskaya Industries, wait for enemies to come out the left side door, and activate halt to pull them out onto the cliff.

Halt can also be good for scouting around a corner using the energy lines given off when it passes an enemy to show it will pull them when detonated.

Fortify

Fortify can save Orisa in the most threatening or unsuspecting moments, like a Lúcio Soundwave or Reinhardt charge.

A charging Reinhardt will be stunned for 1 second upon contact. Make the most of this 1 second and maximize damage output.

If an enemy Reinhardt has already pinned an ally, he can crush that ally against Orisa when she is using Fortify. Reinhardt will not be stunned on impact.

When full health, Orisa can survive after being hit by a pulse bomb but leaves off with about 5 hit points.

You can still fire your Fusion Driver while using Fortify. This makes the ability an excellent defense for when reloading.

Supercharger

The Supercharger has a very large range, but not nearly as much health. Be sure to defend it, as it cannot regenerate health and will not be refunded upon destruction.

Placing the Supercharger in between a wall and Orisa's Protective Barrier will keep it well protected until the barrier runs out of either time or HP.

Use the Supercharger while pushing the payload, and place it on the payload. This way, teammates will not only stay around the payload, but also makes the payload a moving fortress, especially with another Reinhardt, Bastion, and Mercy on it.

With a rather distinct head model and her low health value relative to other tanks, Hanzo and Widowmaker both can punish Orisa hard for positioning flubs, especially if they attack from an angle to avoid Orisa's concave Protective Barrier.

Pharah and Junkrat are two other heroes with long-range capability and no damage falloff that will give Orisa a hard time - Pharah especially can exploit the fact that her front-facing Protective Barrier does not have a very generous ceiling to it.

Genji's quick mobility and effective Deflect ability can become a bother, even a threat, to Orisa.

Orisa is an easy target for Roadhog when Orisa is attacking, as Orisa will be slowed down by her Fusion Driver and is an easy job for Roadhog to hook Orisa. Even without the hook, Roadhog can easily kill Orisa with 2 well-aimed shots.

Orisa's large potential damage output allows for an opportunity for Zarya to use her Particle Barriers, feeding the charge to her Particle Cannon.

Her slow movement speed and large hitbox are her weaknesses, even from afar especially when using her Fusion Driver and Fortify.

Orisa's name is likely a reference to òrìṣàs, spirits from the Yoruba religion. It could also be derived from OR15.

According to an interview with Jeff Kaplan by IGN, Blizzard was using a Cybergoth version of Zarya with Bastion's Sentry configuration gun in testing to resemble Orisa. At this time, they had no model for Orisa.

Her voice line "Do you need a hug?" and "Are you satisfied with your protection?" are nods to Baymax from Disney's Big Hero 6 movie.

In mathematics, division by zero (as seen on Orisa's voice line "Error: Division by 0") happens where the divisor (denominator) is zero. Such a division has no meaning, as there is no number which, multiplied by 0, gives another different number, and so division by zero is undefined. The first mathematician exposing this concept was George Berkeley.

Orisa's Megasoma and Dynastinae skins are named for the 2 genus's of beetles. Megasoma for the Elephant Beetle and Dynastinae for the Rhinoceros Beetle.

Orisa's Immortal skin references the Immortal unit from Starcraft 2, a robotic assault unit with heavy weapons and shields. This is fitting, as Immortals were piloted by Protoss who would otherwise be too wounded to continue fighting, and Orisa is constructed from the remnants of an OR15 unit destroyed in battle with Doomfist.